Solve the equation for the indicated variable. Assume no denominator is 0.A = 2?a2, for a
A. a = 
B. a = 
C. a = 
D. a = 
Answer: D
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Solve the problem.In a biology experiment, a scientist collected 6641 mosquitoes in a field and 4140 mosquitoes in an urban area. How many mosquitoes did she collect altogether?
A. 10,781 mosquitoes B. 3538 mosquitoes C. 10,434 mosquitoes D. 2501 mosquitoes
Solve the problem.The angle of elevation from a point on the ground to the top of a tower is 
. The angle of elevation from a point 141 feet farther back from the tower is 
. Find the height of the tower (to the nearest foot).
A. 1,538 ft B. 150 ft C. 154 ft D. 164 ft
Find the equations of any vertical asymptotes.f(x) = 
A. x = 2 B. x = -2 C. x = 1, x = -1 D. None
Fill in the blank with one of the words or phrases listed below. 
The sign "<" means 
and the sign ">" means 
.
A. positive; negative B. is less than; is greater than C. is greater than; is less than D. negative; positive